PRESTWICH CRAG-BEDS OF SUFFOLK AND NORFOLK. Gastropoda (continued). 489 118 120. J J 40 32 81. J 30. 29. 29. 28. 31& 315. 32. SO. J 315. 33, J 142. 141. 145. 147. 146. 142. 145. 144. 148. 143. II. Names of Species. Littorina littorea ■ rudis, Maton. (^)suboperta Mitra corni- cula, L. Menestho al- bula, Fabr. fMurex tortuo- sus. Nassa conglo- bata. consociata Cuvieri, Payr. t elegans . . . f granulata incrassata t labiosa . . . monensis III. Synonyms and critical remarks L. littorea, var. M. ebenus, Lam. M. erinaceus, L., Tar. Desmoulea ab- breviata, Ch. N. elegans, var, prismatica t propinqua ■ pygmrea, Lam. — ■ — reticosa . . . Natica Alderi, Forb. catena ... t catenoides t cirriformis clausa ... groenlan- dica, Beck. Guille- mini (?) helicoides hemiclausa multipunc- tata. N. semistriata, Brc. ; Cor. Cr. N. incrassata, var. Not N. prisma- tica, Br., but N. lima seu limata, Ch.,= N. scalarifor- mis, Kiener Cor. Cr. N.trivittata,$ay (B. elongatum) (N. Sowerbyi) N. heros, Say? N. sordida, Swainson. N. affinis, Gm. N. catena, jun. N.islandica, Gm. N. millepuncta- ta, Lam., var. N. cirriformis, var. ; Cor. Cr. IV. Zones of depth Lt Lt C C Lt^C "p" C-D C Lt-D C-D }... C-D Lt-L C C-D Lt-C L L-D C-D C-D C-D "c" Geographical distribution. B S A W B S A W M At A B S M W At Africa M W W At W B S M W At M W MW Am BSIW BSMW BSMW Am? B M W At B SA At B S A B S A
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VI. Localities. SBBt 8 WB Wd W S WBt W 8 Bt W Bt Passim S Bt Wd S Bt SBt S S W Bt Bt Passim S Bt S Bt S W S Wd S Bt S Bt 8 S Bt s w W Bt 8 Passim Br T W Br Br VII. So o Br E T E Br Bl C E Bl BrCAd Br TW Yarn BrEAd N Bl VIII. Belgium ? o ? # IX. or'* o *
